F23C 2900/09002
Specific devices inducing or forcing flue gas recirculation
F23C2900/09002 (Specific devices inducing or forcing flue gas recirculation) appears on 94 US grants and 66 published applications in this corpus.
Search patents in F23C- Granted patents
- 94
- Published applications
- 66
- Assignees
- 70
- Inventors
- 200
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 3 |
| 2002 | 3 | 1 |
| 2003 | 4 | 2 |
| 2004 | 2 | 4 |
| 2005 | 4 | 6 |
| 2006 | 2 | 3 |
| 2007 | 1 | 1 |
| 2008 | 3 | 2 |
| 2009 | 0 | 4 |
| 2010 | 0 | 4 |
| 2011 | 1 | 2 |
| 2012 | 2 | 0 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 0 | 3 |
| 2016 | 0 | 4 |
| 2017 | 1 | 2 |
| 2018 | 3 | 3 |
| 2019 | 4 | 4 |
| 2020 | 3 | 0 |
| 2021 | 2 | 0 |
| 2022 | 3 | 7 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device and method for supplying combustion air and for recirculating exhaust gas for a burner3 Mar 2026US 12,565,991 B2WS Warmeprozesstechnik GmbH
- Burner with a moveable air flow diverter30 Sep 2025US 12,429,215 B2Messer Industries USA, Inc.
- Low NOx, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system8 Jul 2025US 12,352,433 B2Saint-Gobain Ceramics & Plastics, Inc.
- Cylindrical burner apparatus and method24 Dec 2024US 12,173,893 B2Gastech Engineering LLC
- Condensing, ultra-low NOx gas-fired humidifier26 Mar 2024US 11,940,178 B2DRI-STEEM Corporation
- Recuperative burner19 Mar 2026US 2026/0078899 A1Kueppers Solutions GmbH
- Air heating apparatus12 Mar 2026US 2026/0071828 A1Kyungdong Navien Co., Ltd.
- Burner, furnace and method of generating a flame18 Dec 2025US 2025/0383079 A1Messer Industries USA, Inc.
- Low nox, high efficiency, high temperature, staged recirculating burner and radiant tube combustion system23 Oct 2025US 2025/0327568 A1Saint-Gobain Ceramics & Plastics, Inc.
- Condensing, Ultra-Low NOx Gas-Fired Humidifier9 Jan 2025US 2025/0012462 A1DRI-STEEM Corporation
Most cited
By later US patents
- Recuperative burner with exhaust gas recirculation means118US 4,445,842 AThermal Systems Engineering, Inc. · 1984
- Flue gas recirculation system101US 4,995,807 ABryan Steam Corporation · 1991
- Combustion chamber with premixing burner and jet propellent exhaust gas recirculation95US 5,584,182 AABB Management AG · 1996
- Burner for combusting gas with low NO.sub.x production92US 5,458,481 AZeeco, Inc. · 1995
- Burner for combusting gas and/or liquid fuel with low NO.sub.x production91US 5,542,840 AZeeco, Inc. · 1996